The apartment is well located, close to the night live but far enough to get a comfortable rest. We used the pool and it was very nice and refreshing after a long day exploring Bangkok. It is like 15 mins walking from Terminal 21.
Kitchen is very well equipped and the whole apartment is automatic (you may control electricity, room temperature, etc). Wifi was also working very well.
Just beware of the bed, it is kind of old (or has been used a lot) and it is quite uncomfortable.
Overall, was a nice stay.